Home / 1,126,273.82-1,554,369.35-642,911.65

Finding the Fourth Proportional to 1,126,273.82, 1,554,369.35 and 642,911.65

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Solution

The fourth proportional to 1,126,273.82, 1,554,369.35 and 642,911.65 is: 887,281.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,126,273.82 : 1,554,369.35 = 642,911.65 : x
  2. Step 2: Convert to fraction form
    1,126,273.82/1,554,369.35 = 642,911.65/x
  3. Step 3: Cross multiply
    1,126,273.82x = 1,554,369.35 × 642,911.65
  4. Step 4: Simplify right side
    1,126,273.82x = 999,322,156,417.45
  5. Step 5: Solve for x
    x = 999,322,156,417.45/1,126,273.82
  6. Step 6: Final answer
    x = 887,281.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.